i know its been posted here a while back but i had doubts on the green paint behind the distributor thing. people say if the head has green paint behind the distributor thats the best way to identify if it is really a itr head. i was thinking any body can put green paint there and sell it to me and rip me off. sorry guys but im going crazy cuz im buying a c5 and i dont want get ripped off.

any advice will greatly be appreciated and would help me sleep better

 

on the front of the head at the top of the exhaust port there are 3 stamping.don't remember the order but if it's a itr head it should have a p73 stamping on one of them.

 

B16 and B17 heads also have the same casting number, which is PR3-X (X = 1,2,3,4). Other than the green paint, I'm not too sure.

 

PR3 reffers to b16 and b17 heads. he wants to know how to identify a b18c5 head...which is P73.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egsir2 &raquo;</TD></TR><TR><TD CLASS="quote">PR3 reffers to b16 and b17 heads. he wants to know how to identify a b18c5 head...which is P73.
</TD></TR></TABLE>

If he rules out that the one hes looking at is not a b17/b16 head then hes left with a itr head because it definetly isnt a gsr.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egsir2 &raquo;</TD></TR><TR><TD CLASS="quote">PR3 reffers to b16 and b17 heads. he wants to know how to identify a b18c5 head...which is P73.</TD></TR></TABLE>

No, a C5 head will be stamped PR3, just like a B16.

 

i still dont get it. if your looking for a way of identifying a certain head....why would you want info on a completely differnet head. doesnt make sense to me. if your looking for an ITR Head,look for P73 stamp...end of story.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan &raquo;</TD></TR><TR><TD CLASS="quote">No, a C5 head will be stamped PR3, just like a B16. </TD></TR></TABLE>

you 100% sure on that? will USDM and JDM be different. my experiences will be wilth JDM only.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egsir2 &raquo;</TD></TR><TR><TD CLASS="quote">i still dont get it. if your looking for a way of identifying a certain head....why would you want info on a completely differnet head. doesnt make sense to me. if your looking for an ITR Head,look for P73 stamp...end of story.</TD></TR></TABLE>

No, it's not "end of story", and I don't see why you're having trouble grasping this concept. A B18C5 head will be stamped PR3, just like a B16 head. You <u>can't</u> determine whether or not a head is from a B18C5 by simply looking at the stamp.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egsir2 &raquo;</TD></TR><TR><TD CLASS="quote">you 100% sure on that? will USDM and JDM be different. my experiences will be wilth JDM only.</TD></TR></TABLE>

USDM and JDM ITR heads are both PR3.

 

then, my most humble of apologies. i stand corrected.

 

Moz92, identifying an ITR head can be somewhat difficult, but some things to look for include:

- the green paint you already mentioned
- paint on the valvesprings (yellow intake, blue exhaust)
- the relatively mild factory port work
- if the head is complete, the ITR cams


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egsir2 &raquo;</TD></TR><TR><TD CLASS="quote">then, my most humble of apologies. i stand corrected.</TD></TR></TABLE>

We're all here to share information and learn.

 

will the actual camshafts have a number stamped on them?

 

 

thanx for the pics.

 

How would you determine a gsr or b16 cam from those cams pitured? I always thought they had to be measured.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by www.technet.ff-squad.net &raquo;</TD></TR><TR><TD CLASS="quote">

Note:
• The 89-91 B16A cam lobe profiles are the weakest of the bunch. All of them are weaker - whether you have a 1-series or 5-series 89-91 B16A engine. If you can get a set of newer cams, I highly advise it.
• A majority of the 92+ B16A/B17A and 94+ B18C (JDM +US) cam profiles are pretty much the same. Although, the 94+ B18C cams seem to put out a bit more power....just a little bit. Dyno-testing is the best way to tell between these stock cams. Again, 'R' cams are best to have over these....
• Your best bet over any of the stock cams is to purchase a set of 'R' cams. Those blow away any of the stock cams - about 7hp on an naturally aspirated VTEC engine. Of course, if you want more cam power, try Spoon or Toda. Just make sure you get the proper valvetrain to work with those bigger cams or else you can end up with damaged valvetrain components!
</TD></TR></TABLE>

 

Thanks. This will deff. come in handy.

 

Look for the badge on the side.


LoLz!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan &raquo;</TD></TR><TR><TD CLASS="quote">

USDM and JDM ITR heads are both PR3. </TD></TR></TABLE>

100% Correct. Green Paint FTW

 

You could also ask the guys in the ITR forum. I would certainly hope they'd know. I could've sworn though that the USDM type R head had a p73 stamp. I know the B16(a) and B18(r) heads are almost identical w/ the later having minor port jobs.
&lt;just searched&gt;
http://www.hondamarketplace.co...84914
^^^looks good to me. Another wrinkle in the brain for me haha